The first group of neurons (pool 1 in Figure 1A) contributed to the decoder's heading report (decoding weight = 1), while responses from the other group (pool 2) were ignored by the decoder (decoding weight = 0).
The amount of residual of every block of 4 × 4 pixels is used by the decoder to reconstruct the decoded MB, so this information will be available in the decoding process.
The LDPCA decoder requests syndromes from the encoder using a feedback channel: initially, a subset of syndromes is received by the decoder, which attempts to decode the source (bitplane).
As mentioned the parity bits are not sent all at once, but they are iteratively requested by the decoder, through a feedback channel, until the estimated error probability on the decoded bit plane reaches a predefined threshold.
As mentioned in [9], there are three main approaches to reduce the complexity of LDPC decoding, namely 1. Simplification of computations performed by the decoder 2.
(Moreover, most code-word errors yield known decoder failures with the standard schedule, whereas invalid decoded code words are not recognized as such by the decoder with the naive IPC).
In this way, when more syndrome bits are requested by the decoder, the already received bits can be reused in the next decoding attempt, see Figure 1.
The signal received by the decoder was not the same as the stimulation it had previously received in training, Dr. Nicolelis said.
Simplification of computations performed by the decoder.
In these states, no packets are received by the decoder.
The vector denotes the samples received by the decoder at the channel output.
